small asterisk/ a2billing enhancement(repost)

Asterisk/ a2billing voip expert to make following 2 enhancements to existing working setup. Existing setup is a callback functionality of a2billing, Customer will call on a Inbound DID, that call would be hangup automatically and customer receive a callback on that number. 1) Customer can do a Recharge while in the call: When call is connected and in the middle of the call if the balance drops below a limit, he should get a IVR message and he should get an option to recharge his balance by pressing *1, the system should ask customer to enter a new PIN (which we assume he already has). After entering a new he balance is updated (Onld balance + New Balance) and the call continues. 2 Multiple destinations in a single call: When first call with the person is about to over, the customer presses ** and gets the dialtone or something to dial the next number...and things continue...** would act as dialtone to avoid having customer dial again the calling card number and enter pin number etc., to dial the next call. It should be a couple of hours task for somebody who knows his stuff. Let me know if any queries. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows? (depending on the nature? of the deliverables): a)? For web sites or? other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software? installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform asterisk, a2billing, voip, php, c/c++, sip